From: Lu Baolu <baolu.lu@linux.intel.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: baolu.lu@linux.intel.com, Joerg Roedel <joro@8bytes.org>,
Will Deacon <will@kernel.org>,
ashok.raj@intel.com, kevin.tian@intel.com,
jacob.jun.pan@intel.com, yi.l.liu@intel.com,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 3/5] iommu/vt-d: Remove SVM_FLAG_PRIVATE_PASID
Date: Wed, 24 Mar 2021 15:25:55 +0800 [thread overview]
Message-ID: <6fa292bd-9307-6e29-7968-005e1b8a087d@linux.intel.com> (raw)
In-Reply-To: <20210323173357.GD2463754@infradead.org>
Hi Christoph,
On 3/24/21 1:33 AM, Christoph Hellwig wrote:
> On Tue, Mar 23, 2021 at 09:05:58AM +0800, Lu Baolu wrote:
>> The SVM_FLAG_PRIVATE_PASID has never been referenced in the tree, and
>> there's no plan to have anything to use it. So cleanup it.
>>
>> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
>
> Looks good,
>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
Thank you!
>
> But can we take this a little further? SVM_FLAG_GUEST_PASID is unused
> as well. SVM_FLAG_GUEST_MODE is only used in drivers/iommu/intel/svm.c,
> and SVM_FLAG_SUPERVISOR_MODE is actually used as an API flag to
> iommu_sva_bind_device. So IMHO the latter should be elevated to an
> IOMMU API level flag, and then include/linux/intel-svm.h can go away
> entirely or at least be moved to drivers/iommu/intel/.
>
Sure. I will consider it and make it in separated patches.
Best regards,
baolu
WARNING: multiple messages have this Message-ID (diff)
From: Lu Baolu <baolu.lu@linux.intel.com>
To: Christoph Hellwig <hch@infradead.org>
Cc: kevin.tian@intel.com, ashok.raj@intel.com,
linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org,
jacob.jun.pan@intel.com, Will Deacon <will@kernel.org>
Subject: Re: [PATCH 3/5] iommu/vt-d: Remove SVM_FLAG_PRIVATE_PASID
Date: Wed, 24 Mar 2021 15:25:55 +0800 [thread overview]
Message-ID: <6fa292bd-9307-6e29-7968-005e1b8a087d@linux.intel.com> (raw)
In-Reply-To: <20210323173357.GD2463754@infradead.org>
Hi Christoph,
On 3/24/21 1:33 AM, Christoph Hellwig wrote:
> On Tue, Mar 23, 2021 at 09:05:58AM +0800, Lu Baolu wrote:
>> The SVM_FLAG_PRIVATE_PASID has never been referenced in the tree, and
>> there's no plan to have anything to use it. So cleanup it.
>>
>> Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
>
> Looks good,
>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
Thank you!
>
> But can we take this a little further? SVM_FLAG_GUEST_PASID is unused
> as well. SVM_FLAG_GUEST_MODE is only used in drivers/iommu/intel/svm.c,
> and SVM_FLAG_SUPERVISOR_MODE is actually used as an API flag to
> iommu_sva_bind_device. So IMHO the latter should be elevated to an
> IOMMU API level flag, and then include/linux/intel-svm.h can go away
> entirely or at least be moved to drivers/iommu/intel/.
>
Sure. I will consider it and make it in separated patches.
Best regards,
baolu
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next prev parent reply other threads:[~2021-03-24 7:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-23 1:05 [PATCH 0/5] iommu/vt-d: Several misc cleanups Lu Baolu
2021-03-23 1:05 ` Lu Baolu
2021-03-23 1:05 ` [PATCH 1/5] iommu/vt-d: Remove unused dma map/unmap trace events Lu Baolu
2021-03-23 1:05 ` Lu Baolu
2021-03-23 17:26 ` Christoph Hellwig
2021-03-23 17:26 ` Christoph Hellwig
2021-03-23 1:05 ` [PATCH 2/5] iommu/vt-d: Remove svm_dev_ops Lu Baolu
2021-03-23 1:05 ` Lu Baolu
2021-03-23 17:29 ` Christoph Hellwig
2021-03-23 17:29 ` Christoph Hellwig
2021-03-23 1:05 ` [PATCH 3/5] iommu/vt-d: Remove SVM_FLAG_PRIVATE_PASID Lu Baolu
2021-03-23 1:05 ` Lu Baolu
2021-03-23 17:33 ` Christoph Hellwig
2021-03-23 17:33 ` Christoph Hellwig
2021-03-24 7:25 ` Lu Baolu [this message]
2021-03-24 7:25 ` Lu Baolu
2021-03-23 1:05 ` [PATCH 4/5] iommu/vt-d: Remove unused function declarations Lu Baolu
2021-03-23 1:05 ` Lu Baolu
2021-03-23 17:35 ` Christoph Hellwig
2021-03-23 17:35 ` Christoph Hellwig
2021-03-23 1:06 ` [PATCH 5/5] iommu/vt-d: Make unnecessarily global functions static Lu Baolu
2021-03-23 1:06 ` Lu Baolu
2021-03-23 17:37 ` Christoph Hellwig
2021-03-23 17:37 ` Christoph Hellwig
2021-04-07 8:16 ` [PATCH 0/5] iommu/vt-d: Several misc cleanups Joerg Roedel
2021-04-07 8:16 ` Joerg Roedel
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